textproduct: Quad Cities

KEY MESSAGES

- Mild and breezy conditions, with WNW winds gusting 25-40 mph, are expected into the early evening.

- A clipper-like system late Monday night into Tuesday morning is forecasted to bring scattered (30-70%) showers and thunderstorms to the region.

- Warm up expected late week with temperatures reaching into the 80s by Friday.

SHORT TERM /THROUGH TONIGHT/

Issued at 145 PM CDT Sat May 9 2026

Gusty WNW to NW winds have developed along and behind a weak cold front and will reach 25 to 40 mph through the afternoon. Due to the strong winds, outdoor burning is discouraged into the evening hours. As the pressure gradient slackens late this evening and daytime mixing wanes, winds will drop off significantly. High pressure building in, combined with a dry air mass will allow temperatures to drop into the 40s to upper 30s (NW) tonight.

LONG TERM /SUNDAY THROUGH FRIDAY/

Issued at 145 PM CDT Sat May 9 2026

Sunday-Monday...Mother's Day will be dry and mostly sunny with highs in the 60s. Lows are expected to drop back into the mid/upper 30s and low 40s, leading to a cool start to Monday morning and possible patchy frost along/north of the Highway 20 corridor. A high pressure to our west is expected to keep winds out of the north and highs in the mid-60s and low 70s on Monday, but this does not last long as the high shifts to the northeast and so does the wind to southeasterly flow, moderating lows (40s and low 50s) and bringing clouds back into the forecast Monday night.

Tuesday-Wednesday... The next shortwave trough dives into the Upper Midwest Tuesday morning, enhancing diffluent flow aloft underneath a shortwave ridge over the Great Lakes. This will allow a surface low pressure over Minnesota to deepen as it moves to the southeast. A relatively strong 850-700 mb f-gen band sets up over eastern Minnesota and northeastern Iowa before moving into Wisconsin and northern Illinois, producing a shield of light-to-moderate stratiform rain. As the cold front moves through early Tuesday afternoon, a narrow band of thunderstorms cold develop along and north of I-80; however, moisture availability is questionable with the limited low-level return ahead of the front. Regardless of storms, winds are going to be gusty on Tuesday with southwest/west gusts around 40 mph possible.

Conditions dry out Tuesday night as northwesterly flow aloft and at the surface will advect in cold and dry air. Lows are going to drop into the 50s after highs in the mid-70s to mid-80s on Tuesday. There is a 10-20% at some light showers lingering in northwestern Illinois Wednesday morning on the backside of the low pressure system, but northerly flow will keep temperatures seasonable Wednesday with highs in the mid-60s and mid-70s and lows in the 40s.

Thursday-Saturday... A high pressure anchored over the Upper Mississippi River Valley should keep the region dry Thursday as longwave ridging builds to our west. This all shifts Thursday night as the next shortwave trough over the western CONUS kicks the ridge and high pressure to the east, turning the surface winds out of the southeast ahead of a developing low pressure system over central Canada. Since this trough will not be well amplified, propagation speed of the low pressure and associated cold front over the Northern Plains is forecasted to be slow, keeping PoPs around Thursday night into Saturday morning. While it is too far out to determine if there is a severe weather threat, the main headline heading into next weekend is the warm temperatures with the LREF currently have 40-60% chances of highs in the 80s.

AVIATION /18Z TAFS THROUGH 18Z SUNDAY/

Issued at 1239 PM CDT Sat May 9 2026

Main impact through the period will be gusty WNW winds this afternoon, reaching 25-30 kts at times. The winds will subside this evening into tonight with prevailing VFR expected. Otherwise, aside from the possibility for a few sprinkles, dry conditions are anticipated through the day.

DVN WATCHES/WARNINGS/ADVISORIES

IA...None. IL...None. MO...None.